Windmill



(No Model.)

J. G. 85 U. 0. STOUGH.

WINDMILL.

No. 338,203. Patented Mar. 16, 1886.

UNITED STATES PATENT OFFICE...

JOHN G. STOUGH AND URIAS G. STOUGH, OF DOVER, PENNSYLVANIA.

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SPECIFICATION forming part of Letters Patent 310,338,203, dated March 16, 1886.

Application filed September 28.1885. Serial No. 178,382.

To all whom it may concern:

Be it known that we, JOHN G. STOUGH and URIAS G. STOUGH, citizens of theUnited States, and residents of Dover, in the county of York 5 and State of Pennsylvania, have invented certain new and useful Improvements in WVindmills; and we do hereby declare that the followingis afull,clear, and exact description of the invention, which will enable others skilled in IO the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification, and in which- Figure 1 is a perspective View of our im [5 proved windmill seen from above. Fig. 2 is a vertical sectional view of the same, and Fig. 3 is a top view.

Similar letters of reference indicate corresponding parts in all the figures.

Our invention has relation to windmills; and it consists in theimproved construction and combination of parts of a windmill having means for governing the speed of the mill in winds of different strength, and having means 2 for overcoming the dead-centers upon the main crank-shaft, rendering it possible to run the mill in a verylight wind, as hereinafter more fully described and claimed.

In the accompanying drawings, the letter A indicates the frame of the mill, the upper end of which is formed into a circular grooved track or turn-table, B, upon which the circular frame 0, upon which the wheel D is attached, rests, the said circular frame havinga circular groove, E, fitting over rollers F, interposed between the turn-table and the frame. The circular frame is provided with a downwardlyprojecting flange at its outer edge, the lower edge, G, of which flange H is bent in under thelower edge of the turn-table, the said flange and its inwardly-bent edge retaining the frame upon the turn-table. The main crank-shaft I is j ournaled in bearings J, upon the upper side of the circular frame, and has the wheel secured at one end, and is formed with two cranks, K. An arm, L, projects from the circular track diametrically opposite to the wheel, and is provided at its outer end with an arm,M, projecting laterally at a right angle to it, and the inner end of the steering-vane N is pivoted (No model.)

1 upon the outer end of the arm projecting from the frame, swinging in a horizontal plane, and has two cords or chains, 0 and P, secured to its innermost end inside of its fulcrum, one, 0, of which ropes passes over a pulley or bear- 5 ing, Q, upon the circular frame, and down through the main frame of the mill, where it may be secured,while the other cord, 1?, passes over a pulley or hearing, R, upon the outer end of the outer arm, and is secured at its end to a lever, S, pivoted at its inner end upon an inclined block, T, upon the circular frame, and provided at its other end with a weight, U. The inclined face of the block faces from the inner end of the vane, so that the weight will cause the lever to descend easily, the descending lever drawing the inner end of the vane toward it and placing the vane in a plane parallel .to the plane of the wheel, causing the wheel to stand with its edge toward the wind, and consequently stoppingthe wheel. A pitman, V, is pivoted to one crank and passes down through the frame to the point where the power is needed, and two pitmen, W W,

are pivoted to thecranks, one of the pitmen being preferably pivoted to the head of the downwardly-projecting pitman, and are pivoted at their upper ends to the inner ends of two levers, X X, having their fulcra upon the upper ends of two uprights, Y Y, upon the cir -8o cular frame, and having adjustable poises Z Z upon their outer ends, the said poises either having screw threaded perforations, with which they turn upon the arms of the levers,

or having smooth perforations sliding upon the smooth arms and retained upon the same by setscrews. It will now be seen that as the wheel and the cranks are revolved the weighted levers will rock and by their momentum assist in carrying the cranks over their dead-centers, thus serving to regulate the speed of the wheel and to render it more even, and the poises may be adjnsted'upon the lever-arms, so as to offer more or less resistance,by sliding them out or in upon the arms. The-weighted levers will 5 in this manner act similarlyto a fly-wheel upon a shaft, adding momentum to the revolutions of the shaft and keeping up the momentum, and, being adjustable upon the levers, they maybe adjusted according to the strength :00

of the wind. The flange having the inwardlybent edge and projecting from the circular frame over the turn-table will retain the frame and rollers in place,and will at the same time allow more space within the circular frame than where a sleeve projects from the frame and turns in the aperture of the turn-table, as is generally used in this class of wind-wheels. The anti-friction rollers interposed between the circular frame and the turn-table will allow the frame and the wheel to turn easily to or from the wind, and the weighted lever having the cord attached to the inner end of the arm of the vane will draw the same parallel to the wheel, and thus stop the wheel as soon as the other cord is released, the lever sliding downward upon the inclined face of the block, rendering the descent of the lever easy, while it retains the cord in nearly the same plane as the arm of the steering-vane, rendering the pull upon the same more direct than if the le ver was pivoted to swing vertically downward.

The wheel may be brought out of the wind in amoment by simply releasing the cord passing down through the frame, and may be brought in the wind by drawing the said cord, and the said cord may, if desired, be provided with a weight,instead of being secured, so that a sudden change of wind of greater strength than it is desired to subject the wheel to will bring the Wheel out of the wind by being forced back parallel with the wheel,and consequently bringing the wheel out of the wind.

Having thus described our invention, we claim and desire to secure by Letters Patent of the United States 1. In a wind-wheel, the combination of the circular frame bearing the wheel and provided with a rectangularly-bent arm diametrically opposite to the wheel, a steering-vane pivoted with its arm at the elbow of the rectangularly-bent arm, a pulley or bearing secured to the frame at one side of the vane-arm, a pulley or bearing secured at the end of the arm, a block having an inclined side facing away from the vane and secured upon the frame at one side of the vane, a lever having a weight at its outer end and pivoted at its inner end upon the inclined face of the block, a cord secured to the inner end of the vane-arm and passing over the pulley or bearing upon the frame, and a cord secured to the inner end of the vane-arm and passing over the pulley or bearing upon the end of the bent arm and secured to the weighted lever, as and for the purpose shown and set forth.

2. In a wind-wheel, the combination of the main wheel-shaft formed with cranks, levers pivoted upon uprights and having weighted outer ends, and pitmen pivoted to the cranks and to the inner ends of the weighted levers, as and for the purpose shown and set forth.

3. In a wind-wheel, the combination of the wheel-shaft formed with two cranks, levers pivoted upon uprights at the sides of the shaft, poises sliding adjustably upon the outer arms of the levers, and pitmen pivoted at their lower ends to the cranks and at their upper ends to the inner ends of the levers, as and for the purpose shown and set forth.

In testimony that we claim the foregoing as our own we have hereunto affixed our signatures in presence of two witnesses.

JOHN G. STOUGH. URIAS O. STOUGH. \Vitnesses:

A. H. SHEARER, W, H. KEEOH. 

